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from pip.req import InstallRequirement, RequirementSet, parse_requirements
from pip.basecommand import Command
from pip.exceptions import InstallationError
class UninstallCommand(Command):
name = 'uninstall'
usage = '%prog [OPTIONS] PACKAGE_NAMES ...'
summary = 'Uninstall packages'
def __init__(self):
super(UninstallCommand, self).__init__()
self.parser.add_option(
'-r', '--requirement',
dest='requirements',
action='append',
default=[],
metavar='FILENAME',
help='Uninstall all the packages listed in the given requirements file. '
'This option can be used multiple times.')
self.parser.add_option(
'-y', '--yes',
dest='yes',
action='store_true',
help="Don't ask for confirmation of uninstall deletions.")
def run(self, options, args):
requirement_set = RequirementSet(
build_dir=None,
src_dir=None,
download_dir=None)
for name in args:
requirement_set.add_requirement(
InstallRequirement.from_line(name))
for filename in options.requirements:
for req in parse_requirements(filename, options=options):
requirement_set.add_requirement(req)
if not requirement_set.has_requirements:
raise InstallationError('You must give at least one requirement '
'to %(name)s (see "pip help %(name)s")' % dict(name=self.name))
requirement_set.uninstall(auto_confirm=options.yes)
UninstallCommand()
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